The Induced Changes in the Bulk Etch Rate and the Thermal Stability of PADC by the Effect of Long Storing Time at Room Temperature and Heat Treatment | ||
| Arab Journal of Nuclear Sciences and Applications | ||
| Article 6, Volume 52, Issue 1, January 2019, Pages 44-55 PDF (1.85 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajnsa.2018.2917.1058 | ||
| Author | ||
| Marwa Yehia Shoeib* | ||
| Basic Science Department (Physics), Modern Academy for Engineering & Technology in Maadi,Cairo, Egypt. | ||
| Abstract | ||
| The samples of poly allyl diglycol carbonate PADC (CR-39) (stored and fresh samples) polymer track detectors have been heated for different annealing temperatures and different annealing times. The thermal stability has been studied for different annealed samples; also it was examined as a function of storage time. The degree of crystallinity percentage has been studied for different annealed samples and stored samples. The samples were etched in 6 M KOH solution at 70°C for 3 h as etchant duration. The variation of bulk etch rate of isochronal annealed samples has been studied. The results indicate an improvement in the thermal stability of Poly allyl diglycol carbonate PADC; where the bulk etch rate increases with the increase in the annealing temperature and annealing time. The storage time has no noticeable effect on the bulk etch rate of un- annealed samples, though the thermal stability of PADC improved with increasing the storage time. | ||
| Keywords | ||
| CR-39; Annealing Temperature; storage time; Thermal stability; Activation energy | ||
|
Statistics Article View: 511 PDF Download: 481 |
||
